Finding the Fourth Proportional to 151,567.55, 209,163.11 and 87,041.01
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Solution
The fourth proportional to 151,567.55, 209,163.11 and 87,041.01 is: 120,116.53
Step by Step Solution
- Step 1: Write the proportion equation
151,567.55 : 209,163.11 = 87,041.01 : x - Step 2: Convert to fraction form
151,567.55/209,163.11 = 87,041.01/x - Step 3: Cross multiply
151,567.55x = 209,163.11 × 87,041.01 - Step 4: Simplify right side
151,567.55x = 18,205,768,349.14 - Step 5: Solve for x
x = 18,205,768,349.14/151,567.55 - Step 6: Final answer
x = 120,116.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.